16693906 has 8 divisors (see below), whose sum is σ = 26129664. Its totient is φ = 7984020.

The previous prime is 16693889. The next prime is 16693909. The reversal of 16693906 is 60939661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16693909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181410 + ... + 181501.

It is an arithmetic number, because the mean of its divisors is an integer number (3266208).

Almost surely, 2^16693906 is an apocalyptic number.

16693906 is a deficient number, since it is larger than the sum of its proper divisors (9435758).

16693906 is a wasteful number, since it uses less digits than its factorization.

16693906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362936.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 16693906 is about 4085.8176660248. The cubic root of 16693906 is about 255.5755601087.

The spelling of 16693906 in words is "sixteen million, six hundred ninety-three thousand, nine hundred six".